Authorities have arrested 22 people for allegedly planning protests over the murder of teenager Mahmoud El Banna earlier this month, the Associated Press reports. El Banna was fatally stabbed by another boy, Mohamed Rageh, while trying to protect a girl from harassment. The Interior Ministry claimed the people were Ikhwanis who intended to start a riot outside of the Menoufia courthouse where the trial is being held. The murder has become a major story across the country, with calls for justice going viral on social media.